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6.6.2. Data model

The data model used in the annotations follows specific conventions.

Service binding annotations must use the following convention: 

service.binding(/<NAME>)?:
    "<VALUE>|(path=<JSONPATH_TEMPLATE>(,objectType=<OBJECT_TYPE>)?(,elementType=<ELEMENT_TYPE>)?(,sourceKey=<SOURCE_KEY>)?(,sourceValue=<SOURCE_VALUE>)?)"

where:

<NAME>

Specifies the name under which the binding value is to be exposed. You can exclude it only when the objectType parameter is set to Secret or ConfigMap.

<VALUE>

Specifies the constant value exposed when no path is set.

The data model provides the details on the allowed values and semantic for the path, elementType, objectType, sourceKey, and sourceValue parameters.

Expand
표 6.4. Parameters and their descriptions
ParameterDescriptionDefault value

path

JSONPath template that consists JSONPath expressions enclosed by curly braces {}.

N/A

elementType

Specifies whether the value of the element referenced in the path parameter complies with any one of the following types:

  • string
  • sliceOfStrings
  • sliceOfMaps

string

objectType

Specifies whether the value of the element indicated in the path parameter refers to a ConfigMap, Secret, or plain string in the current namespace.

Secret, if elementType is non-string.

sourceKey

Specifies the key in the ConfigMap or Secret resource to be added to the binding secret when collecting the binding data.

Note:

  • When used in conjunction with elementType=sliceOfMaps, the sourceKey parameter specifies the key in the slice of maps whose value is used as a key in the binding secret.
  • Use this optional parameter to expose a specific entry in the referenced Secret or ConfigMap resource as binding data.
  • When not specified, all keys and values from the Secret or ConfigMap resource are exposed and are added to the binding secret.

N/A

sourceValue

Specifies the key in the slice of maps.

Note:

  • The value of this key is used as the base to generate the value of the entry for the key-value pair to be added to the binding secret.
  • In addition, the value of the sourceKey is used as the key of the entry for the key-value pair to be added to the binding secret.
  • It is mandatory only if elementType=sliceOfMaps.

N/A

참고

The sourceKey and sourceValue parameters are applicable only if the element indicated in the path parameter refers to a ConfigMap or Secret resource.

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